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CN-224233414-U - Directional rotor of synchronous motor and synchronous motor

CN224233414UCN 224233414 UCN224233414 UCN 224233414UCN-224233414-U

Abstract

The invention belongs to the technical field of motors, in particular to a directional rotor of a synchronous motor and the synchronous motor, which comprises a body and a first gear arranged on the upper side of the body, wherein an annular convex edge arranged around the first gear is arranged on the upper end surface of the body, a gap is arranged between the annular convex edge and the first gear, and two opposite sides of the annular convex edge respectively extend outwards to form a positioning convex part.

Inventors

  • LI JUNXUAN
  • YUAN HENGLIN
  • LIN SILI
  • Wen Chengbiao
  • ZHONG XUEWEN

Assignees

  • 肇庆龙头电器科技股份有限公司

Dates

Publication Date
20260512
Application Date
20250415

Claims (7)

  1. 1. The directional rotor of the synchronous motor is characterized by comprising a body (30) and a first gear (31) arranged on the upper side of the body (30), wherein an annular convex edge (312) arranged around the first gear (31) is arranged on the upper end face of the body (30), a gap is arranged between the annular convex edge (312) and the first gear (31), and two opposite sides of the annular convex edge (312) respectively extend outwards to form a positioning convex part (311).
  2. 2. The directional rotor according to claim 1, characterized in that the annular flange (312) comprises a first arc section (313) engaging the positioning protrusions (311) at both ends, wherein the first arc section (313) is provided with an inwardly extending detent (314) between both ends and the corresponding positioning protrusions (311).
  3. 3. The directional rotor according to claim 2, characterized in that the positioning protrusion (311) comprises a straight inclined section (315) connected to a corresponding first arc section (313) at both ends, and a second arc section (316) connected to the straight inclined section (315) at both ends, the straight inclined section (315) and the first arc section (313) forming the detent (314) therebetween.
  4. 4. A directional rotor according to claim 3, characterized in that the two ends of the oblique straight section (315) and the corresponding second arc section (316) enclose a hollowed-out area (317).
  5. 5. The directional rotor according to claim 1, wherein the positioning protrusions (311) are provided in a sector-shaped structure with a cross section that expands outwards.
  6. 6. The directional rotor according to claim 1, characterized in that a number of stiffening ribs (318) are connected between the annular flange (312) and the first gear (31).
  7. 7. Synchronous motor, characterized by a housing (1), a coil bracket (2), a mounting plate (5), a transmission assembly and the directional rotor (3) according to any one of claims 1 to 6, wherein the coil bracket (2) is provided with an assembly groove (21) for the installation of the directional rotor (3), the mounting plate (5) is arranged on the upper side of the coil bracket (2), a first through hole (51) for the passage of the first gear (31) is arranged in the middle, and the transmission assembly is arranged on the mounting plate (5) and is provided with a second gear (62) meshed with the first gear (31); The bottom of second gear (62) is equipped with can rotate around its axis of rotation second directional ratchet (4), directional ratchet (4) dispose extend into first via hole (51) and arrange in blocking portion (41) of first gear (31) downside, first via hole (51) be in first gear (31) axis of rotation with second gear (62) axis of rotation opposite both sides of line (100) are equipped with respectively and dodge groove (511) that extend outside, blocking portion (41) can follow second gear (62) get into dodge groove (511) of corresponding one side when rotating along the first direction dodge positioning protrusion (311), and can follow second gear (62) leave this dodge groove (511) and with positioning protrusion (311) butt when rotating along the second direction, in order to restrict the direction of rotation of rotor (3).

Description

Directional rotor of synchronous motor and synchronous motor Technical Field The utility model belongs to the technical field of motors, and particularly relates to a directional rotor of a synchronous motor and the synchronous motor. Background The existing permanent magnet synchronous motor mainly comprises a shell, a coil bracket arranged in the shell, a rotor arranged in an assembly hole in the middle of the coil bracket, a mounting plate arranged on the upper side of the coil bracket in a covering way, a transmission component arranged on the mounting plate and the like, wherein the rotor is provided with a first gear, the transmission component is provided with a second gear meshed with the first gear, as the synchronous motor is connected with alternating current, in order to avoid reverse rotation of the rotor caused by magnetic field change when the current is switched on and off, a blocking structure is usually arranged on the lower side of the second gear, and a protruding structure matched with the blocking structure is arranged on the lower side of the first gear, the rotor is used for limiting the rotation direction of the rotor, the existing protruding structure is generally connected with the first gear into a whole, and is mainly formed integrally through an injection molding process, but because plastics shrink after injection molding, the existing protruding structure and the first gear are connected into a whole, and the shrinkage between the two is mutually influenced, so that the structure of the protruding structure and the first gear is unstable, the strength is poor, the injection molding precision of an inner hole of the rotor of the motor is influenced, the noise of the motor and the service life of the motor are influenced, and therefore, the rotor capable of improving the strength of the first gear and the protruding structure is necessary to be developed. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provides a directional rotor capable of improving the strength of a first gear and a protruding structure. In order to solve the technical problems, the utility model adopts the following technical scheme: The utility model provides a synchronous machine's directional rotor, includes the body and locates the first gear of body upside, the body up end is equipped with around the annular protruding edge that first gear set up, annular protruding edge with be equipped with the clearance between the first gear, the opposite both sides on annular protruding edge extend to the outside respectively and form the location convex part. Further, the annular protruding edge comprises a first arc section connected with the two ends of the positioning protruding part, clamping positions extending inwards are formed between the two ends of the first arc section and the corresponding positioning protruding parts, and the clamping positions can be effectively abutted with a blocking structure of the synchronous motor transmission mechanism, so that the rotor is effectively clamped and prevented from rotating reversely. Further, the positioning convex part comprises an inclined straight section with two ends respectively connected with the corresponding first circular arc sections, and a second circular arc section connected with the two ends of the inclined straight section, wherein the clamping position is formed between the inclined straight section and the first circular arc sections. Furthermore, the inclined straight sections at the two ends and the corresponding second circular arc sections are enclosed to form a hollowed-out area, and the hollowed-out area can enlarge the distance between the inclined straight sections and the first gear, so that the design difficulty of the injection mold is simplified, and materials can be saved. Further, the positioning convex part is arranged to be a sector structure with the cross section expanding outwards, and the sector structure formed by the arrangement can enlarge the contact area of the blocking structure of the synchronous motor transmission mechanism. Further, a plurality of reinforcing ribs are connected between the annular protruding edge and the first gear, so that the strength of the first gear and the annular protruding edge is further improved, and deformation of the first gear and the annular protruding edge can be prevented. The utility model also provides a synchronous motor, which comprises a shell, a coil bracket, a mounting plate, a transmission assembly and the directional rotor, wherein the coil bracket is provided with an assembly groove for the installation of the directional rotor, the mounting plate is arranged on the upper side of the coil bracket, the middle part of the mounting plate is provided with a first through hole for the passage of the first gear, the transmission assembly is arranged on the mounting plate, and the transmission assembly is provided with a second gear